class Lookbook::PreviewExample

def all
  Preview.all.map { |preview| preview.examples }.flatten
end

def display_params
  @preview.display_params.merge(@example_inspector.display_params)
end

def exists?(path)
  !!find(path)
end

def find(path)
  all.find { |p| p.lookup_path == path }
end

def full_template_path(template_path)
  template_path = strip_ext template_path
  base_path = Array(Lookbook.config.preview_paths).detect do |p|
    Dir["#{p}/#{template_path}.html.*"].first
  end
  path = Dir["#{base_path}/#{template_path}.html.*"].first
  path ? Pathname.new(path) : nil
end

def hierarchy_depth
  @preview.hierarchy_depth + 1
end

def id
  @example_inspector&.id || generate_id(@preview.id, name)
end

def initialize(name, preview, code_object)
  @name = name
  @preview = preview
  @example_inspector = SourceInspector.new(code_object, eval_scope: @preview.preview_class.new)
  super("#{@preview.path}/#{name}")
end

def label
  @example_inspector.label.presence || name.titleize
end

def lang
  Lookbook::Lang.find(:ruby)
end

def matchers
  normalize_matchers(@preview.label, label)
end

def method_source
  @example_inspector.source.sub(/^def \w+\s?(\([^)]+\))?/m, "").split("\n")[0..-2].join("\n").strip_heredoc.strip
end

def strip_ext(path)
  path.sub(/\..*$/, "")
end

def template_lang(template_path)
  Lookbook::Lang.guess(full_template_path(template_path)) || Lookbook::Lang.find(:html)
end

def template_source(template_path)
  source_path = full_template_path(template_path)
  source_path ? File.read(source_path) : nil
end

def type
  :example
end

def url_path
  lookbook_inspect_path lookup_path
end